Page end indicator for typewriters



- Jan. 25, 1949. J. G. FURCHAK 2,460,170

PAGEv END INDICATOR FOR TYPEWRITERS Filed April 8, 1946 2 Sheets-Sheet l INVENTOR. cfoh n 6;. Fun: half 01w; j wva.

ATI'CI RNEYB J. G. FURCHAK PAGE END INDICATOR FOR TYPEWRITERS Jan. 25, 1949.

2 Sheets-Sheet 2 Filed April 8, 1946 INVENTORY (707m .GfFurchal Patented Jan. 25, 1949 STATES are r 4 Claims.

This invention relates to an indicator for typewriters which will indicate to the typist that the end of the paper therein has been reached.

An object of the invention is to provide a device that can be adjusted for paper of various lengths easily and quickly and when so adjusted will perform its operation efficiently.

Another object of the invention is to provide a device that is simple in construction, may be attached to typewriters of any conventional make, and will by an audible signal indicate to the typist that the end of the paper has been reached.

With the above and other objects and advantages in View the invention consists of the novel details of construction, arrangement and combination of parts more fully hereinafter described, claimed. and illustrated. in the accompanying drawing in which:

Figure 1 is a top plan view of an embodiment of the invention;

Figure 2 is a sectional view on the line 2-2 of Figure 1;

Figure 3 is a sectional view on the line 3-3 of Figure 2;

Figure 4 is a sectional view on the line tt of Figure 3;

Figure 5 is a sectional view on the line 5-5 of Figure 3, and

Figure 6 is an elevational view of a modified form of drive.

Referring more in detail to the drawings the reference numeral Ill indicates a fragment of a conventional typewriter frame having the usual platen roller I2 mounted on the axle M.

The embodiment of the invention comprises the housing 16 which is provided with an inturned marginal fiange l8 and the removable cover 26 which is adapted to support the housing on the typewriter frame by means of fasteners 22 which pass through the removable cover 25 of the housing to be threaded into the frame it. The cover 24 is retained on the housing it by means of fasteners 28 passing through said cover to be threaded into the inturned flange it.

As shown in Figure 3 the housing it has a straight wall 25 adjacent the portion of the frame to which it is attached and the body of the housmg formed on the wall is semi-cylindrical in shape to accommodate the circular dial 23 provided on the complementary shaped cover 2 The dial 23 is graduated in inches which are so designated by indicia 3i and graduations 32 properly positioned on the dial.

The cover at the center of the dial is provided with an aperture 3 to receive the shaft 35 on the upper end of which is secured by means of a set screw 38 a pointer id and the shaft is rotatably mounted in a sleeve G2 secured to the undersurface of the cover and communicating with the aperture 34.

A. gear M is provided on the lower end of the shaft 36 and is adapted to mesh with a gear it secured by means of a set screw :38 to the axle M. It will be noted that axle it has been provided with an extension in order that the milled hand wheel 58 may be positioned at the outside of the housing 56, the hand wheel 553 beingsecured to the axle by the set screw 52 and in order to properly support the extended axle i i a bracket 54 having the aperture 55 therein for the axle has been stamped out of the bottom of the housing it and engages the axle as shown in Figure 2.

The gear is provided with the same number of teeth as is the ratchet for the roller and therefore the rotation of gear 44 will be commensurable with the rotation of the gear 45. This gear 46 will rotate in unison with the roller.

Secured to gear 45 by a fastener 58 is a horseshoe-shaped bell til which will rotate with the gear.

A clapper 62 for the bell 69 is pivotally mounted on gear at by means of a bolt 54 and a sleeve 65 on the bolt (it properly positions the clapper with relation to the gear and bell as shown in Figure 5 and the clapper is tensioned by means of the spring 63 mounted on the sleeve 66 and secured at its ends to the clapper and gear as shown in Figure 5.

The clapper rotates with the gear and is provided with an arm it, which will engage the striker extension 12 formed on the inner surface of the housing to cause the clapper to strike the bell to indicate audibly to the typist that the end of the paper has been reached.

To insure proper engagement of the gears 45 and at during rotation thereof a compression spring l i mounted on the sleeve 42 engages the cover it and gear M1 to force the gear into engagement with gear 45, thus maintaining the gears in properly meshed relation to each other.

When it is desired to use the attachment the pointer iii is lifted against the tension of the spring '5 to disengage the gears 54 and 4S and it is set at any of the graduations desired in order that when the clapper engages the striker extension 12 the clapper will sound by means of the bell an audible signal to indicate that the Thus a device has been provided which can be properly set to indicate the page end and it is believed that the construction and the operation thereof will be apparent to those skilled in the art.

It is also to be understood that changes in the details of construction, arrangement and combination of parts may be resorted to provided they fall within the spirit of the invention and the scope of the appended claims.

Having thus described the invention what is claimed as new and desired to be secured by Letters Patent is:

1. A device of the character described, comprising a housing, a removable cover on said housing, a dial on said cover, a pointer on said dial coacting therewith, a vertical shaft for mounting said pointer at the upper end thereof,

a gear on the lower end of said shaft, a rotatable an axle below said gear, a gear on said rotatable axle coacting with the first mentioned gear to cause rotation of said pointer, an inwardly ex- .4 tending projection on said housing, and means on said first mentioned gear coacting with the projection on said housing to sound an audible signal when said pointer has reached a predetermined setting on said dial.

2. The invention as in claim 1 wherein a sleeve is provided for rotatably mounting said shaft and said sleeve at its upper end is secured to said housing and tensioning means for said first mentioned gear is mounted on said sleeve.

3. The invention as in claim 1 wherein the means for sounding an audible signal comprises a bell and a clapper mounted on said first mentioned gear to strike said bell when an arm formed on said clapper engages said projection on said housing.

4. The invention as in claim 1 wherein said means for sounding an audible signal comprises a horseshoe-shaped bell and a clapper to strike said bell to give the signal, and means is provided for tensioning said clapper.

JOHN G. FURCHAK.

REFERENCES CITED The following references are of record in the of this patent:

UNITED STATES PATENTS Number Name Date 312,545 Allen Feb. 17, 1885 1,007,233 Paquet Oct. 31, 1911 2,212,463 Thomas Aug. 20, 1940 

